(   ) 3. [2015 • 威海]―Is that woman your head teacher?

―No,it       be her. Our head teacher is in her office.

   A. mustn't   B. can't

   C. needn't

(   ) 2. [2015 • 安徽]—Do you have any plans for this Sunday?

―I'm not sure. I       go to the countryside to see my grandmother.

   A. can   B. must

   C. may   D. need

(   ) 1. [2015 • 菏泽]—How do you usually go to school?

―My school is far away. I        take the bus to school.

   A. must   B. might

   C. have to

5. 在森林里，没有比熊跑得更快的了。

No one can           in the forest       bears.

4. 最重要的是，我们不能跑。

                ,we can't run.

3. 现在我们能吃东西吗？

 Can we have                       now?

2. 你千万不能沿着边缘走，因为你有可能摔倒并受伤。

You              along the edge       you might fall and              .

1. 突然，我听见一只小鸟正在树上唱歌。

      ，I heard a little bird       in the tree.

5. You mustn't drive after        (drink) .

4. Mike,don't walk along the edge,or you might fall and hurt       (you) .